Mechanism for operating machines for attaching buttons, &amp;c.



I Patented May 27, I902. T. LONG. MECHANISM FOR OPERATING MACHINES FOR ATTACHING BUTTONS, 8m.

(Application filed May 24, 1900) 3 Sheets-Sheet I.

(No Model.)

No. 700,790. Patented May 27, I902.

' T. LONG.

MECHANISM FOR OPERATING MACHINES FOR ATTAGl-IING BUTTONS, &c.

(Application filed. May 24. 1900.)

3 Sheets-Sheet 2.

(No Modei.)

s NEW 7% m 4 LA 4. m M w WM 1 M 2 n V\ l away/1,

No. 700,790. Patented May 27, I902.

T. LUNG.

MECHANISM FOR OPERATING MACHINES FOR-ATTACHING BUTTONS, 8w.

(Application filed May 24. 1900.) (No Model.) 3 Sheets-$heet 3.

THE NORRIS vzrzns cu Pno'roumo. WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

THOMAS LONG, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE CONSOLI- DATED FASTENER COMPANY, OF PORTLAND, MAINE.

MECHANISM FOR OPERATING MACHINES FORATTACHING BUTTONS, &c.

. $PECIFIGATION forming part of Letters Patent No. 700,790, dated May 2'7, 1902.

Application filed May 24, 1900- Serial No. 17,796. (No model.)

To all whom it may concern:

Be it known that I, THOMAS LONG, a citizen of the United States, residing at Boston, in the. county of Sufiolk and Commonwealth of Massachusetts, have invented a new and useful Improvement in Mechanisms for Operating Machines for Attaching Buttons or for other Purposes, of which the following is a full specification.

My invention relates to mechanisms for operating machines for attaching buttons or for other purposes which have an intermittent motion controlled by the operator and which while having a contin uously-revolving driving-wheel driven by a belt or other means are arranged to makebut one revolution at each pressure of the operators lever; and it consists in a new and improved mechanism whereby this result is surely accomplished without danger of more than one revolution being made.

My improved meehanismcould readily be applied to any power-machine having an intermittent motion controlled by the operator; but I have shown it as applied to a buttonsetting machine, as set forth in Letters Patent No. 608,693, issued August 9, 1898. In this mechanism for operating machines for attaching buttons or for other purposes referred to the operation of setting a button is accomplished by means of foot-power, and I have adapted my improved mechanism to same so that the operation is performed by power by the pressing of as1nalltreadle,which causes the machine to make a revolution.

Referring to-the accompanying drawings, wherein like letters represent like parts,'Figure 1 is a side elevation of myimproved mechanism for operating machines for attaching buttons or for other purposes. Fig. 2 is a plan of driving mechanism. Fig. 3 is a horizontal section of mechanism for operating machines for attaching buttons or for other purposes on the line 3 3, Fig. 1. Fig. 4 is a vertical sectionon the line 4 4, Fig. 3, showing the driving-pulley in elevation. Fig. 5 is a vertical section on the line 5 5, Fig. 3, looking in the direction away from the drivingwheel. Fig. 6 is a vertical section on the line 6 6, Fig. 5, looking toward the back of the mechanism. Fig. 7 is a perspective view of sliding dog. Fig. 8 is a vertical section on the line 8 8, Fig. 3, showing removable treadlein dotted lines. Fig. 9 is a plan of my removable treadle.

In the drawings, A is the frame of my mechanism B, the bell-crank lever, by partial revolution of which motion is imparted to any machine supported on the frame A. An adj ustable toggle-jointlever,having the arms 0 and G, is pivoted, respectively, to the bell-crankB and to the frame A at o. By straightening out this toggle C C the bell-crank B is made to turn, and this straightening of the toggle I accomplish by the cam D, which turns with the shaft E and bears against the roller 0 on the arm 0. The toggle-joint C C is held in its normal position by the spring a and is also provided with the dash-pot or buffer 0 which strikes against the cam D as the toggle flies back after the cam has made a revolution, and thus breaks the shock. I have also provided the removable treadle 0 Figs. 8 and 9, which can be inserted in the bottom of the toggle G, a suitable treadlepocket being provided for its reception and by which the machine can be operated by foot-power independently of the power mechanism and Whether the power mechanism is in operation or at rest. The advantage of this construction lies in the fact that the machine can be operated either by foot or by power. Normallythepowermechanismwould be used; but it is oftentimes desirable to move the bell-crank lever less than a full movementfor instance,where an inspection of the lower moving member of the mechanism op-. erated by the toggle is desired or the parts carried by said member be changed, &c., at which time a full movement is not desirable, 0 and then the foot-power (the treadle C is operated to the extent desired without changing the position of the parts of the power mechanism. The presence of the treadlepocket and the fact thatthe toggle-lever is 5 not positively connected to the power-driving mechanism make the structure especially desirable.

The cam D is fixed to the shaft E, which turns in suitable journals in the hangers F F, secured to the frame A.

The driving-pulley G turns loosely on the shaft E and carries in its hub the projecting pins or teeth 9 g, which I preferably urgeoutward bythe springs g, but which may be solidly fixed to the hub.

On the opposite side of the driving-wheel G from the cam D is the sliding dog H. (Shown in perspective in Fig. 7.) This dog carries the key 71, which slides in a keyway in the shaft and also projects from each end, as shown. l/Vhen the dog is forced-toward the driving-wheel, its projecting key it engages with one of the pins or teeth g of the revolving driving-wheel, and the dog H, shaft E, and cam D are thus carried around with the driving-wheel G. By the springs I bearing between the dog H and collar e, fixed to the shaft E, the dog H is constantly urged away from the pulley and toward the hanger F, which is provided with a cam plate f on the side next to the dog H. The greater part of the surface of the cam-plate, f is in circular plane at right angles to the axis of shaft E; but it is provided with a depression f, Fig. 6, in

which one end of the projecting key it rests when in normal position, being held therein by the springs I. The parts are so proportioned that when in its normal position the other end of the key it is just out of engagementwith the pins or teeth g g of the pulley G; but when the dog H is slid along the shaft, so that the one end of the key It is engaged by one of the pins or teeth g, the other end of the key It is even with the plane surface of the cam-plate f and is carried around on this surface for the greater part of a revolution or until it can drop or move into the depression f, thus locking/the dog H in its operative position. As shown, the entering side of the depression f is sloped in order that the key 72 may enter it easily; but the other side of the depression f forms a shoulderf, against which the key it rests in its normal position. The key it is forced out of the depression f by the sliding ejectorrod 0, which by means of the treadle J, rod K, rocker-lever L, lever M, rods n and N is given a sliding motion parallel to the shaft. The treadle mechanism is held in its normal position by the spring Z acting on the rockerlever L, as shown. against the shouldered end of the depression f, it also rests against the end of the ejectorrod 0, and when the treadle is pressed by the operators foot the rod 0 moves forward and presses the key h out of the depression f against the tension of the springs I, the latter causing the key h to remain in contact with the .face of the camf. When the end of the key h is flush with the surface of the cam f, its other end engages with one of the pins or teeth g, and the key, dog, shaft, and

cam D are carried around for a revolution untilby means of the tooth-disengaging mechanism, consisting of vthe springs I, the dog H is forced out of gear, the key h dropping again into the depression f, where it will stay until the treadle is again pressed.

When the key it rests In addition to the springs I, I provide another tooth-disengaging mechanism or positive means of throwing the dog out of gear, as follows: On the dog H, I provide a cam-lug h, adapted to engage at the proper point of revolution with the cam P, rigidly attached to the hanger F, so that the dog, with key h, is thrown out of gear with the pins 9 g and into the depression f; This tooth-disengaging mechanism provides a positive throw-out in case the springs Ishould break or weaken; but I have found that less shock is experienced by providing the said springs I as well. Should the operator keep the treadle pressed down after a revolution has been made, the key h Will simply bring up against the rod 0, which will be projected out'into the depressionf and supported by its shoulder f Another revolution cannot be made until the treadle is released and pressed again. When the treadle is released and the rod 0 with-- drawn, it is necessary to turn the shaft slightly in order that the key it may rest against the shoulder again and opposite.

the end of the shaft E. The mechanism is operative if the pins g g are simply fixed teeth in the hub of the pulley G; but I preferably use the pin-springsg in the hub of the wheel in case the treadle should be pressed at a time when one of the pins g-is directly opposite the key 72. in thedog. In this event the pin will simply yield before the advancing key it and slip past it, so that the next pin will engage with the key h.

It will thus be seen that by my improved mechanism a revolution of the cam, and only one revolution, can be made with each pressure of the treadle and that it is impossible for the cam to make a second revolution unless the treadle is released and pressed again.

I claim- 1. In mechanism for operating machines for attaching buttons, or for other purposes, the combination of a constantly-driven mechanism a toggle-joint lever; means for operating said lever, said means being normally out of operative connection with the driven mechanism; and a treadle-actuated power stop mechanism for positively moving said means into operative connection with the driven mechanism, said mechanism automatically preventing a movement in excess of a single revolution of the driven mechanism, regardless of the position of the treadle.

2. In mechanism for operating machines '7 for attaching buttons, or for other purposes,

the combination of a constantly-driven mechanism; a toggle-joint lever; means for oper ating said lever, said means being normally out of operative connection with K the driven mechanism 3 and a treadleactuated power stop mechanism for positively moving said means into operative connection with the driven mechanism, said connection being held substantially non-yielding during the major portion of the revolution of the driven mechanism, said mechanism automatically preventing a movement in excess of asingle revolution of the driven mechanism, regardless of the position of the treadle.

3. In mechanism for operating machines for attaching buttons, or for other purposes, the combination of a constantly-driven mechanism; a toggle-joint lever; means for operating said lever, said means being normally out of operative connectionwith the driven mechanism; a treadle-actuated power stop mechanism for positively moving said means into operative connection with the driven mechanism; and means for automatically disengaging said connection at a predetermined point in the revolution of the drivenmechanism irrespective of the position of the treadle.

4. In mechanism for operating machines for attaching buttons, or for other purposes,..

the combination of a constantly-driven mechanism; a toggle-joint lever, means for operating said lever, said means being normally out of operative connection with the driven mechanism; a treadle-actuated power stop mechanism for positively moving said means into operative connection with the driven mechanism; and means for automatically disengaging said connection at a predetermined point in the revolution of the driven mechanism irrespective of the position of the treadle, said means being operated at a plurality of points.

5. In a mechanism for operating machines for attaching buttons, or for other purposes, a toggle-joint lever having a treadle pocket or socket, a treadle in said socket and powerdriven mechanism mounted to intermittently impart a movement 'to said lever, said mechanism being independent of and havingno positive connection with said toggle, whereby the lever may be moved independently by treadle or power-driven mechanism.

6. In a mechanism for operating machines for attaching buttons, or for other purposes, a treadle-actuated stop mechanism comprising a splined drivingshaft and a loose hubtoothed pulley on said shaft, in combination with an ejector and treadle-actuated sliding a splined driving-shaft, and a loose hubtoothed pulley on said shaft, in combination with a sliding dog keyed to said shaft, springs for normally holding said dog out of engagement with said pulley, a plate having a dog and described.

S.- In a mechanism for operating machines for attaching buttons, or for other purposes, a stop mechanism comprising a splined drivingshaft,a loose hub-toothed pulley on said shaft, in combinationwith a sliding dog keyed to said shaft and having a cam-lug h, a camplate having a dog-receiving depression and a lug-engaging cam, and an ejector whereby said shaft makes one and but one revolution at each stroke of the ejector, substantially as shown and described.

9. In a mechanism for operating machines for attaching buttons, or for other purposes, a stop mechanism comprisingasplined drivingshaft, a spring-actuated crank-pin s, and a loose hub-toothed pulley mounted onsaid shaft, in combination with a sliding dog keyed to said shaft and normally held in inoperative position, a cam-plate having a dog receiving depression,and a treadle-actuated ejector-rod O, substantially as shown and described.

10. In a mechanism for operating machines for attaching buttons, or for otherpurposes, a toggle-joint lever and a roller 0, thereon, in combination with a driven shaft, a cam fixed on said shaft, a spring-pin R slidable therein, a power stop mechanism for driving the shaft, comprising a loose hub-toothed pulley, a sliding keyed dog normally held in inoperative position, a cam-plate having a dog-receiving depression, and a treadle-operated ejectorrod, all substantially as shown and described.

11. In a mechanism for operating machines ment with said teeth and automatically held locked in operative position. thereto during the greater portion of the rotation of the shaft, and tooth-disengaging mechanism operating automatically regardless of the position of the treadle, substantially as shown and described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 13th day of April, A. D. 1900.

THOMAS LONG. v

\Vitnesses:

FRANK G. PARKER, G. A. HoLMEs. 

